Battle of Hornshole
1514 CE.
Shown on the map at 55.331°, -2.955°.
The Battle of Hornshole was a skirmish fought in 1514 between an English raiding party and youths from Hawick, as most of the town's adult male population had been killed in the Battle of Flodden the previous year.
Text from the Wikipedia article Battle of Hornshole, licensed CC BY-SA 4.0.